<big fat snip>
Attached are 2 potential patches which resolve the issue we're hitting
(I let someone else decide which one or modify as needed)
libomp_check_linker_flag rewrites src_to_link.c and CMakeLists.txt in
build directory for test project, but cmake does not rebuild the
project. The root cause is that on some filesystems (ext3, reiserfs)
timestamp resoultion is 1 second. So cmake does not rebuild test
project if check takes less than 1 second.
Comments: These checks are somewhat stupid and it would be nice to be
able to disable them. I don't know of any other llvm project
essentially doing this
write small CMake file just for testing; run cmake; test; etc
The work-around is to build test projects in different subdirs.
One patch uses variable name instead of flag name for subdirectory
names, to avoid use of special symbols in directory name (-- , /).
Please decide and push ASAP.
openmp_llvm_check(1).patch (790 Bytes)
openmp_llvm_check.patch (793 Bytes)